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参数资料
| 型号： | ISL24003 |
| 厂商： | Intersil Corporation |
| 英文描述： | Multi-Channel Buffers Plus VCOM Driver(多通道缓冲器和VCOM驱动器) |
| 中文描述： | 多通道加的VCOM驱动缓冲器（多通道缓冲器和威科姆驱动器） |
| 文件页数： | 8/10页 |
| 文件大小： | 535K |
| 代理商： | ISL24003 |
8
FN6118.0
December 7, 2005
Description of Operation and Application
Information
Product Description
The ISL24003 are fabricated using a high voltage CMOS
process. They exhibit rail to rail input and output capability
and have very low power consumption. When driving a load
of 10K and 12pF, the buffers have a -3dB bandwidth of
10MHz and exhibit 9V/μs slew rate. The V
COM
amplifier has
a -3dB bandwidth of 12MHz and exhibit 10V/μs slew rate.
Input, Output, and Supply Voltage Range
The ISL24003 are specified with a single nominal supply
voltage from 5V to 15V or a split supply with its total range
from 5V to 15V. Correct operation is guaranteed for a supply
range from 4.5V to 16.5V.
The input common-mode voltage range of the ISL24003
within 500mV beyond the supply rails. The output swings of
the buffers and V
COM
amplifier typically extend to within
100mV of the positive and negative supply rails with load
currents of 5mA. Decreasing load currents will extend the
output voltage even closer to each supply rails.
Output Phase Reversal
The ISL24003 are immune to phase reversal as long as the
input voltage is limited from V
S
- -0.5V to V
S
+ +0.5V.
Although the device's output will not change phase, the
input's over-voltage should be avoided. If an input voltage
exceeds supply voltage by more than 0.6V, electrostatic
protection diode placed in the input stage of the device begin
to conduct and over-voltage damage could occur.
Output Drive Capability
The ISL24003 do not have internal short-circuit protection
circuitry. The buffers will limit the short circuit current to
120mA and the V
COM
amplifier will limit the short circuit
current to 150mA if the outputs are directly shorted to the
positive or the negative supply. If the output is shorted
indefinitely, the power dissipation could easily increase such
that the part will be destroyed. Maximum reliability is
maintained if the output continuous current never exceeds
10mA for the buffers and 60mA for the V
COM
amplifier.
These limits are set by the design of the internal metal
interconnections.
The Unused Buffers
It is recommended that any unused buffers should have their
inputs tied to ground plane.
Power Dissipation
With the high-output drive capability of the ISL24003, it is
possible to exceed the 125°C “absolute-maximum junction
temperature” under certain load current conditions.
Therefore, it is important to calculate the maximum junction
temperature for the application to determine if load
conditions need to be modified for the buffer to remain in the
safe operating area.
The maximum power dissipation allowed in a package is
determined according to:
where:
T
JMAX
= Maximum junction temperature
T
AMAX
= Maximum ambient temperature
θ
JA
= Thermal resistance of the package
P
DMAX
= Maximum power dissipation in the package
The maximum power dissipation actually produced by an IC
is the total quiescent supply current times the total power
supply voltage, plus the power in the IC due to the loads, or:
when sourcing, and:
when sinking.
where:
i = 1 to total number of buffers
V
S
= Total supply voltage of buffer and V
COM
I
SMAX
= Total quiescent current
V
OUT
i = Maximum output voltage of the application
V
OUT
= Maximum output voltage of V
COM
I
LOAD
i = Load current of buffer
I
LA
= Load current of V
COM
If we set the two P
DMAX
equations equal to each other, we
can solve for the R
LOAD
's to avoid device overheat. The
package power dissipation curves provide a convenient way
to see if the device will overheat. The maximum safe power
dissipation can be found graphically, based on the package
type and the ambient temperature. By using the previous
equation, it is a simple matter to see if P
DMAX
exceeds the
device's power derating curves.
P
DMAX
T
- T
JA
--------------------------------------------
=
P
DMAX
V
S
+
V
S
I
S
I
LA
Σ
i
V
S
+
(
V
OUT
i
)
I
LOAD
i
]
(
V
OUT
)
×
–
+
×
–
×
+
×
=
P
DMAX
V
OUT
V
S
I
S
I
LA
Σ
i
V
(
OUT
i
[
V
S
-
)
I
LOAD
i
]
(
V
S
-
)
×
–
+
×
–
×
+
×
=
ISL24003
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL24003 WAF | 制造商:Intersil Corporation 功能描述: |
| ISL24003IRZ | 功能描述:IC BUFFER 18CH VCOM DRVR 44-QFN RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 标准包装:1,000 系列:- 应用:驱动器 输出类型:差分 电路数:3 -3db带宽:350MHz 转换速率:1000 V/µs 电流 - 电源:14.5mA 电流 - 输出 / 通道:60mA 电压 - 电源，单路/双路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 供应商设备封装:20-QFN 裸露焊盘（4x4） 包装:带卷 (TR) |
| ISL24003IRZ-T7 | 功能描述:IC BUFFER 18CH VCOM DRVR 44-QFN RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 视频放大器和频缓冲器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:TFT-LCD 面板：VCOM 驱动器 输出类型:满摆幅 电路数:1 -3db带宽:35MHz 转换速率:40 V/µs 电流 - 电源:3.7mA 电流 - 输出 / 通道:1.3A 电压 - 电源，单路/双路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 供应商设备封装:8-uMax-EP 包装:管件 |
| ISL24005IRTZ | 制造商:Intersil Corporation 功能描述:PB-FREE 14-CH PROGRAMMABLE SWITCHABLE I2C TFT-L - Bulk |
| ISL24005IRTZ-T13 | 功能描述:IC REF VOLT GEN TFT/LCD 32-TQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:热电冷却器 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商设备封装:28-TSSOP 裸露焊盘 包装:管件 产品目录页面:1410 (CN2011-ZH PDF) |
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